Often confused with ferrous stress relieval treatments, this process mechanically stress relieves the aluminum by stretching the rod or bar thus achieving a permanent increase in length and low residual stress levels.
a process of reducing residual stresses in material by heating to a suitable temperature and holding for a suffient time. this treatment may be applied to relieve stresses inducted by casting, quenching, normalizing, machining, cold working or welding.
Reducing stress in a metal object by raising the temperature of the object and maintaining the object's temperature for a specified amount of time.
The reduction of the effects of internal residual stresses by thermal or mechanical means.
The reduction of residual stresses in a metal part, or welded fabrication, either thermally, or mechanically. Stress relieving is generally considered to be a thermal treatment, wherein the part is heated to a suitable sub-critical temperature and held at temperature long enough to relieve the major stresses and then air cooled. Stress relieving should not be confused with tempering, and must be done at least 50 F to 100 F below the temperature at which the part being stress relieved was tempered.
A thermal cycle involving heating to a suitable temperature, usually 1000-1200ÂF, holding long enough to reduce residual stresses from either cold deformation or thermal treatment, and then cooling slowly enough to minimize the development of new residual stresses.
Heating to and, if necessary, holding at, some temperature generally below the transformation range, usually followed by slow cooling, for the sole purpose of relieving internal stresses. Note:- Other treatments, eg., annealing, tempering, etc., whilst primarily applied to bring about changes in structure or properties may also relieve internal stresses.
A heat treatment including heating and soaking at a suitable temperature (e.g. 600-650oC) followed by cooling at an appropriate rate in order to reduce internal stresses without substantially modifying the steel's structure. This treatment may be used to relieve stresses induced by machining, quenching, welding or cold working.
A process of reducing residual stresses in a materials by heating the metal to suitable temperature, holding for a sufficient time and cooling at room temperature. Such stresses may be induced by cold working or welding.
Heat treating with a slow cooling cycle reduces stresses in fabricated or machined metal.
a thermal process for reducing internal stresses in metals.
Although a degree of stress relaxation (stress relief) may occur at room temperature, this term normally implies a heat treatment in which the material is heated up and soaked at a suitable temperature before being control cooled back to room temperature. Stress relief occurs by creep, so the degree of relief achieved is both time and temperature dependent.